Non-contact electric inductance circuit for power source

ABSTRACT

A non-contact electric inductance circuit for a power source converts input alternating current into signals with harmonic vibration and of high frequency, a coil of a set of corresponding receiver equipment receives the harmonic vibration of the signals to convert it into electric energy; wherein the entire electric inductance circuit has a driving circuit, a harmonic circuit, a feedback circuit, a micro-processing circuit and an adapted-to-adjusting-frequency oscillating circuit integrated with one another. When in operation, the alternating electric current passes to the harmonic circuit after being amplified through the driving circuit, and the feedback circuit transmits the voltage or current of the harmonic circuit to the micro-processing circuit that analyses the value of the voltage or current detected, in order that the entire electric inductance circuit can generate the best harmonic frequency.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention is related to the technique of a non-contactelectric inductance circuit for a power source, and especially toimprovement of circuit construction in an electric inductance circuitfor a power source through alternating signals to emit harmonicvibration energy to a set of corresponding receiver equipment bywireless transmission, for the purpose of rendering the entire electricinductance circuit for the power source to generate the best harmonicfrequency.

2. Description of the Prior Art

A conventional wireless non-battery mouse concerns a technique takingadvantage of a fact that harmonic vibration energy provided byalternating signals can be obtained by a coil and further converted intoelectric energy to render a power source that is expected to be suppliedfor a mouse (or a set of related receiver equipment) to emit in the modeof wireless transmission (i.e., the receiver equipment and the powersupply do not contact via circuit contact points).

Such a transmission technique for a power source in which harmonicvibration energy is emitted to a set of corresponding receiver equipmentthrough alternating signals by wireless transmission mainly usesalternating electric current passing through a coil to generate signalsof high frequency with harmonic vibration; while the coil of thecorresponding receiver equipment receives the harmonic vibration of thesignals of high frequency to convert it into electric energy. This meansthat the quality of the harmonic vibration (harmonic frequency)generated by the power supply (or the electric inductance circuit forthe power source) will directly influence the subsequent electric energyreceived/converted from the receiver equipment.

And more, the harmonic vibration generated by the power supply (or theelectric inductance circuit for the power source) mainly is formedthrough operations of an internal inductance and an internal capacitor;hence the expected harmonic frequency generated can be obtained by usingthe inductance and the capacitor of given specifications. However,practical operating efficiencies of inductances of same specification orcapacitors of same specification still have some differences amongthemselves; thereby similar power supplies (or electric inductancecircuits for power sources) shall further be added with relatedadjusting parts (or material) in the process of production to compensatethe operation effects of the inductances or capacitors, and theadjusting parts must take cumbersome and repeated adjustment actions torender the harmonic frequencies generated to get the range asked;thereby, the yield of production of the similar power supplies (orelectric inductance circuits for power sources) can not be effectivelyelevated, this in turn affects their market competitiveness.

SUMMARY OF THE INVENTION

The non-contact electric inductance circuit for a power source of thepresent invention is an electric inductance circuit for a power sourceemitting harmonic vibration energy to a set of corresponding receiverequipment through alternating signals by wireless transmission toelectrically charge the receiver equipment or instantly supply thereceiver equipment with operation power source. The entire supplyingcircuit of the electric inductance circuit for the power sourcebasically has a driving circuit, a harmonic circuit, a feedback circuit,a micro-processing circuit and an adapted-to-adjusting-frequencyoscillating circuit integrated with one another.

When in operation, the adapted-to-adjusting-frequency oscillatingcircuit generates alternating electric current that passes to theharmonic circuit after being amplified through the driving circuit, andthe feedback circuit transmits the voltage or the current of theharmonic circuit to the micro-processing circuit that analyses the valueof the voltage or the current detected, then theadapted-to-adjusting-frequency oscillating circuit adjusts the frequencyof subsequent input alternating electric current, in order that theentire electric inductance circuit for the power source can generate thebest harmonic frequency.

Moreover, the electric inductance circuit for the power source of thepresent invention can be further integrated with a signal processingcircuit transmitted in the mode of radio signal transmission, so thatthe electric inductance circuit for the power source can be used as theequipment for the radio signal transmission (such as a signal receiverof a wireless mouse or a wireless keyboard), thereby the function andadded value of the entire electric inductance circuit for the powersource can be elevated.

The present invention will be apparent in its structure combination andentire mode of operation after reading the detailed description of thepreferred embodiment thereof in reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block view showing the construction of a first preferredembodiment of an electric inductance circuit for a power source of thepresent invention;

FIG. 2 is a circuit diagram of the first preferred embodiment of anelectric inductance circuit for a power source of the present invention;

FIG. 3 is a block view showing the construction of a second preferredembodiment of an electric inductance circuit for a power source of thepresent invention;

FIG. 4 is a block view showing the construction of a third preferredembodiment of an electric inductance circuit for a power source of thepresent invention;

FIG. 5 is a block view showing the construction of a fourth preferredembodiment of an electric inductance circuit for a power source of thepresent invention;

FIG. 6 is a block view showing the construction of a fifth preferredembodiment of an electric inductance circuit for a power source of thepresent invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

The non-contact electric inductance circuit 10 for a power source of thepresent invention is an electric inductance circuit for a power sourceemitting harmonic vibration energy to a set of corresponding receiverequipment through alternating signals by wireless transmission toelectrically charge the receiver equipment or instantly supply thereceiver equipment with operating power source. When in operation, thiscan be applied on transmission of electric power by the receiverequipment such as a wireless mouse, a wireless keyboard, a backlightboard, a contact-control panel, a write pen etc., the receiver equipmentsuch as the wireless mouse or the wireless keyboard etc. can obtain theelectric power required for instant operation without any contact ofcircuit contacting point (this is so called non-contact transmission),or can be applied on electrically charging products to charge theelectric power storing element in the equipment; and even can be appliedon a circuit of a radio frequency identification system (RFID system) togenerate an electric-wave magnetic field.

As shown in FIGS. 1 and 2, the entire electric inductance circuit 10basically has a driving circuit 11, a harmonic circuit 12, a feedbackcircuit 13, a micro-processing circuit 14 (namely the firstmicro-processing circuit 14 marked in the drawing) and anadapted-to-adjusting-frequency oscillating circuit 15 integrated withone another. The driving circuit 11 can amplify an alternative currentgenerated by the adapted-to-adjusting-frequency oscillating circuit 15and pass to the harmonic circuit 12, and the input alternating electriccurrent acquires a harmonic feature (f=½π√{square root over (LC)})through an inductance L and a capacitor C in the harmonic circuit 12,then the coil of a set of corresponding receiver equipment 20 canreceive the harmonic vibration of signals, and the harmonic energy canbe converted into electric energy.

And as mentioned in the “Description of the Prior Art” above, theharmonic frequency generated by operations of an inductance and acapacitor will not be an expected harmonic frequency solely because ofidentity of the specifications of parts assembled, hence the point ofimprovement of the present invention is to use the feedback circuit 13to transmit the voltage or the current of the harmonic circuit 12 to thefirst micro-processing circuit 14 that analyses the value of the voltageor the current detected (to obtain the practically generated quality ofthe harmonic vibration, and to obtain by comparing the degree ofdifference thereof from the quality of the harmonic vibration set inadvance), then the adapted-to-adjusting-frequency oscillating circuit 15adjusts the frequency to generate the best harmonic frequency. Therebythe entire electric inductance circuit 10 for the power source cancompletely save the cumbersome adjusting operation during the process ofproduction, and the yield of production of the non-contact electricinductance circuit 10 for the power source can be effectively elevated.

And as shown in FIGS. 3 and 4, the electric inductance circuit 10 forthe power source of the present invention can be further integrated witha signal processing circuit 16 specific for radio signal transmission,so that the electric inductance circuit 10 can be a set of radio-signaltransmission equipment (such as a signal receiver of a wireless mouse ora wireless keyboard) for a personal computer (PC) or the like. When inpracticing, such as is shown in FIG. 3, the micro-processing circuit 14(namely the first micro-processing circuit 14) used originally foranalyzing/adjusting the quality of the harmonic vibration is used tomake connection of the power source with the radio signals, or as shownin FIG. 4, a micro-processing circuit (not shown) used originally foranalyzing/adjusting the quality of the harmonic vibration is integratedwith the feedback circuit 13, an outer portion of the feedback circuit13 is integrated further with a second micro-processing circuit 17 (notshown) specific for signal connection to expect that effective workdivision can be achieved without lowering speed of radio signaltransmission.

One thing is worth mentioning, by virtue that the non-contact electricinductance circuit 10 for the power source of the present invention cancontinuously electrically charge an electric power storing element inthe receiver equipment 20 when not in operation, thereby as shown inFIG. 5, a function of switching the mode of operation of the drivingcircuit 11 can be provided in the micro-processing circuit (namely thefirst micro-processing circuit 14 in FIG. 5) used originally foranalyzing/adjusting the quality of the harmonic vibration, hence when itis in the state that the receiver equipment 20 emits radio signals, thedriving circuit 11 is kept in the mode of operation of normallyproviding electric power; on the contrary, when it is in the state thatthe receiver equipment 20 does not emit radio signals (i.e., thereceiver equipment 20 is in a non-operating state), the firstmicro-processing circuit 14 switches the driving circuit 11 to anoperation mode of lowering output to avoid unnecessary consumption ofelectric power. Similarly, as shown in FIG. 6, a micro-processingcircuit used originally for analyzing/adjusting the quality of theharmonic vibration is integrated with the feedback circuit 13, an outerportion of the feedback circuit 13 is integrated further with a secondmicro-processing circuit 17, this can also get the function of savingelectric power without lowering speed of radio signal transmission.

As is the description disclosed above, the present invention providespreferred embodiments of electric inductance circuits for power sources;while the description and the drawings given are only for illustratingthe embodiment of the present invention, and not for giving anylimitation to the scope of the present invention; it will be apparent tothose skilled in this art that various equivalent modifications orchanges in structure, arrangement as well as feature without departingfrom the spirit of this invention shall also fall within the scope ofthe appended claims.

1. A non-contact electric inductance circuit for a power source, saidcircuit amplifies an alternative current generated by an oscillatorthrough a circuit driving circuit and pass to a harmonic circuit;wherein: said electric inductance circuit has a feedback circuit, amicro-processing circuit and an adapted-to-adjusting-frequencyoscillating circuit integrated with one another, in order that saidfeedback circuit transmits voltage or current of said harmonic circuitto said micro-processing circuit that analyses quality of harmonicvibration practically generated, and obtains by comparing the degree ofdifference of said harmonic vibration from quality of a harmonicvibration set in advance), then said adapted-to-adjusting-frequencyoscillating circuit adjusts frequency to get the best harmonicfrequency.
 2. The non-contact electric inductance circuit for a powersource as in claim 1, wherein: said electric inductance circuit isfurther integrated with a signal processing circuit transmitted in amode of radio signal transmission.
 3. The non-contact electricinductance circuit for a power source as in claim 2, wherein: saidmicro-processing circuit is integrated with said feedback circuit, anouter portion of said feedback circuit is integrated further withanother micro-processing circuit for radio signal transmission.
 4. Thenon-contact electric inductance circuit for a power source as in claim1, wherein: said electric inductance circuit is further integrated withanother signal processing circuit for radio signal transmission, saidmicro-processing circuit is given a function of switching mode ofoperation of said driving circuit.
 5. The non-contact electricinductance circuit for a power source as in claim 4, wherein: saidmicro-processing circuit is integrated with said feedback circuit, anouter portion of said feedback circuit is integrated further withanother micro-processing circuit for radio signal transmission.
 6. Thenon-contact electric inductance circuit for a power source as in claim1, wherein: said non-contact electric inductance circuit is applied onnon-contact electrically charging products.
 7. The non-contact electricinductance circuit for a power source as in claim 1, wherein: saidnon-contact electric inductance circuit is applied on a radio-frequencyidentification system.
 8. The non-contact electric inductance circuitfor a power source as in claim 1, wherein: said non-contact electricinductance circuit is applied on a backlight board.
 9. The non-contactelectric inductance circuit for a power source as in claim 1, wherein:said non-contact electric inductance circuit is applied on a wirelessmouse.
 10. The non-contact electric inductance circuit for a powersource as in claim 1, wherein: said non-contact electric inductancecircuit is applied on a wireless keyboard.
 11. The non-contact electricinductance circuit for a power source as in claim 1, wherein: saidnon-contact electric inductance circuit is applied on a contact-controlpanel.
 12. The non-contact electric inductance circuit for a powersource as in claim 1, wherein: said non-contact electric inductancecircuit is applied on a write pen.